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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Earnings per Common Share | Basic and diluted earnings per common share were calculated as follows (in thousands, except per share amounts):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Basic weighted average number of shares outstanding | 37,647 |  |  | 37,607 |  |  | 37,703 |  |  | 37,763 |
Effect of dilutive securities: |  |  |  |  |  |  |
Unvested restricted stock | 582 |  |  | 798 |  |  | 582 |  |  | 728 |
Diluted average shares outstanding | 38,229 |  |  | 38,405 |  |  | 38,285 |  |  | 38,491 |
Net earnings | $ | 200,752 |  |  | $ | 109,118 |  |  | $ | 499,984 |  |  | $ | 270,948 |
Basic earnings per share | $ | 5.33 |  |  | $ | 2.90 |  |  | $ | 13.26 |  |  | $ | 7.17 |
Diluted earnings per share | $ | 5.25 |  |  | $ | 2.84 |  |  | $ | 13.06 |  |  | $ | 7.04 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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